JP6908358B2 - Parcel penetration structure. - Google Patents

Description

The present invention relates to a partition penetrating structure in which piping or wiring is passed through a through hole formed in a compartment.

Conventionally, a through hole is formed in a wall body such as a floor of a building or a partition wall, and a pipe is inserted through the through hole. Then, in order to keep the fluid passing through the pipe warm, the surface of the pipe is covered with a sheet made of a heat insulating material (hereinafter referred to as a heat insulating sheet) (for example, Patent Document 1). The heat insulating sheet has a predetermined thickness and is wound around the surface of the pipe in advance before the pipe is passed through the through hole.

Japanese Unexamined Patent Publication No. 2004-27554

By the way, when a pipe covered with a heat insulating sheet is inserted into a through hole as described above, the heat insulating sheet does not have a soundproofing / deodorizing function, and a large diameter through hole is provided in the wall to improve workability. Since it is formed in, excessive sound leakage and odor leakage may occur through the through hole.

Therefore, an object of the present invention is a partition penetrating structure in which a pipe or wiring is inserted into a through hole formed in a compartment, and a compartment penetrating structure capable of suppressing sound leakage and odor leakage through the through hole to a small value. To provide the structure.

In order to achieve the above object, the present invention includes the subjects described in the following sections.

Item 1. A compartment in which a through hole is formed and piping or wiring is passed through the through hole,
A compartment penetrating structure having a porous piece filled between the inner surface of the through hole and the outer surface of the pipe or wiring.

Item 2. The through hole is composed of a tubular sleeve.
The pipe or wiring is passed through the inside of the sleeve.
Item 2. The compartment penetrating structure according to Item 1, wherein the porous piece is filled between the inner surface of the sleeve and the outer surface of the pipe or wiring.

Item 3. The sleeve contains a heat-expandable refractory resin material.
Item 2. The compartment-penetrating structure according to Item 2, wherein the porous piece is formed of a combustible material.

Item 4. Item 2. The compartment penetrating structure according to Item 1 or 2, wherein the porous piece is formed of glass wool or rock wool.

Item 5. With an additional ring cap,
Item 1 The cap is installed at one end of the through hole so that the pipe or wiring is passed through the inner opening, and covers between the inner surface of the through hole and the outer surface of the pipe or wiring. The section penetrating structure according to any one of 4 to 4.

Item 6. Item 5. The compartment-penetrating structure according to Item 5, wherein the cap is made of vinyl chloride, polyurethane, or rubber.

Item 7. Further equipped with an annular fixing member,
Item 5 or 6 wherein the fixing member is fastened to the pipe or wiring so that the pipe or wiring is passed through the inner opening and is in contact with the surface of the cap opposite to the through hole. Section penetration structure.

Item 8. Item 2. The compartment penetrating structure according to Item 7, wherein the fixing member has a metal part formed of stainless steel, iron, or galvanized steel.

According to the present invention, the through hole is adjusted by adjusting the amount of the porous piece to be filled between the through hole and the pipe or the wiring according to the width between the through hole of the compartment and the pipe or the wiring. The space between the pipe or the wiring can be filled with a porous piece without a gap. Therefore, sound leakage and odor leakage through the through hole can be suppressed to a small level.

It is schematic cross-sectional view which shows the section penetration structure which concerns on embodiment of this invention. It is a perspective view which shows the water supply pipe, a sleeve, a cap, and a fixing member. It is a schematic perspective view of the sleeve shown in FIG. 2 as seen from the bottom surface. It is a schematic cross-sectional view which shows the construction method of the section penetration structure which concerns on embodiment of this invention. It is a schematic cross-sectional view which shows the state in which the sleeve is inflated. (A) is a perspective view showing a modification of the fixing member, and (b) is a plan view showing a modification of the fixing member. (A) is a perspective view showing a modification of the fixing member, and (b) is a plan view showing a modification of the fixing member. It is a top view which shows the deformation example of a cap. It is a perspective view which shows the modification of the sleeve. It is a schematic cross-sectional view which shows the construction method of the section penetration structure which concerns on the modification of this invention. It is a schematic cross-sectional view which shows the state in which the sleeve is inflated. (A) is a partially enlarged cross-sectional view of another example of a sleeve provided with a positioning portion protruding inward, (b) is an end view of the sleeve of FIG. 14 (a), and (c) is a view of the sleeve. It is a partially enlarged sectional view of another example. (A) is a front view of another example sleeve in which a sleeve fixing portion is integrally formed, and (b) is a perspective view of FIG. 15 (a) showing a sleeve mounting state. It is a perspective view of the sleeve fixing part formed separately from a sleeve. FIG. 5 is a schematic perspective view showing a stack structure of sleeves in which sleeves containing a non-thermally expandable material are stacked with respect to sleeves containing a thermally expandable material. It is a schematic perspective view which shows the modification of the sleeve. It is a schematic perspective view which shows the modification of the sleeve. It is a schematic perspective view which shows the modification of the sleeve. It is a schematic perspective view which shows the modification of the sleeve. It is a schematic perspective view which shows the modification of the sleeve. It is a schematic perspective view which shows the modification of the sleeve. It is a schematic perspective view which shows the stack structure of a sleeve. (A) is a schematic perspective view showing another example of the stack structure of the sleeve, and (b) is a vertical sectional view of FIG. 23 (a).

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a compartment penetrating structure 100 according to an embodiment of the present invention.

The compartment penetrating structure 100 according to the present embodiment has a compartment 6, a porous piece 7, a cap 30, and a fixing member 50.

The compartment 6 is a horizontal concrete wall that divides the inside of the building into upper floors and lower floors. A through hole 16 is formed in the compartment 6 by using a tubular sleeve 10. The through hole 16 penetrates the compartment 6 up and down, and the pipe 5 or the wiring is inserted through the through hole 16. The pipe 5 includes a water supply pipe, a hot water supply pipe, a refrigerant pipe, a heat medium pipe, a gas pipe, an intake / exhaust pipe, and the like. Wiring includes various cables such as electric power cables and communication cables.

FIG. 2 is a perspective view showing a pipe 5, a sleeve 10, a cap 30, and a fixing member 50. FIG. 2 shows a state in which the formwork 2 and the reinforcing bar R are assembled in order to construct the compartment 6 (that is, FIG. 2 shows a state before the compartment 6 is constructed).

The sleeve 10 is also referred to as a void and includes a cylindrical sleeve body 12. The opening 19 of the sleeve body 12 functions as a through hole 16 (see FIG. 1), and the size of the opening 19 (inner diameter of the sleeve body 12) is outside the pipe 5 or wiring (hereinafter, pipe 5 or the like). It is larger than the diameter, and the pipe 5 and the like can be inserted through the opening 19.

The lower end 13b of the sleeve body 12 is provided with one or more mounting portions 24. The mounting portion 24 is integrally molded with the sleeve body 12. In the example of FIG. 2, four mounting portions 24 are provided at the lower end 13b of the sleeve body 12, and these four mounting portions 24 are separated from each other around the axis A of the sleeve 10 at an angle of about 90 °. Each mounting portion 24 has a hole 26 for fixing the sleeve 10 to the floor base 1. The bottomed rectangular formwork 2 is for accommodating the concrete 3 (FIG. 4 (b) described later), and the reinforcing bar R for reinforcing the concrete 3 is accommodated in the formwork 2. The concrete 3 and the reinforcing bar R constitute the floor base 1.

A metal wire such as a wire, a fixing member such as a bolt, a screw, or a nail may be passed through the hole 26 in order to fix the sleeve 10 to the formwork 2, the reinforcing bar R, the concrete 3, or the like. In the present embodiment, the sleeve 10 is fixed to the reinforcing bar R by passing a metal wire or the like through the hole 26 of the mounting portion 24 and connecting both ends of the metal wire to the reinforcing bar R. It should be noted that, as an option, grease is attached to the hole 26 to make it easier to remove the fixing member so that the fixing member can be removed from the sleeve 10, or the attachment portion 24 is attached by manually applying force to the attachment portion 24. The portion 24 may be broken so that it can be removed.

The sleeve 10 also includes ribs that project from the outer surface of the sleeve body 12. In the example of FIG. 2, as the ribs, a plurality of ribs 12a (three in FIG. 2) extending substantially parallel to the axis A of the sleeve 10 and a plurality of ribs exhibiting an annular shape centered on the axis A of the sleeve 10. There are 12b (three in FIG. 2), and these ribs 12a and 12b are integrally molded with the sleeve body 12. The ribs 12a and 12b play a role of reinforcing the sleeve 10 so that the sleeve 10 can withstand the force received from the concrete when the concrete is poured around the sleeve 10.

FIG. 3 is a schematic perspective view of the sleeve 10 shown in FIG. 2 as viewed from the bottom surface. Referring to FIG. 3, in the sleeve 10 of the present embodiment, among the plurality of ribs 12b, the lowermost rib 12b is provided at a position slightly higher than the lower end 13b of the sleeve body 12 (for example, 3 mm to 20 mm). There is a space 12c between the portion of the sleeve body 12 below the lower surface of the lowermost rib 12b, the lowermost rib 12b, and (furthermore, the mounting portion 24 protruding from the lower end 13b of the sleeve body 12). Is formed.

The sleeve 10 having the above structure is formed of a heat-expandable refractory resin material. The refractory resin material is a resin composition containing a heat-expandable layered inorganic substance and an inorganic filler as resin components. The sleeve 10 is formed by kneading each component of the resin composition using a known device such as a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a Raikai machine, or a planetary stirrer. It can be obtained by molding by the method.

In the present embodiment, the sleeve body 12, the ribs 12a and 12b, and the mounting portion 24 of the sleeve 10 are integrally molded from the same heat-expandable refractory resin material.

As the resin component, known resin components can be widely used, and examples thereof include thermoplastic resins, thermosetting resins, rubber substances, and combinations thereof.

Examples of the thermoplastic resin include polyolefin resins such as polypropylene resin, polyethylene resin, poly (1-) butene resin, and polypentene resin, polystyrene resin, acrylonitrile-butadiene-styrene (ABS) resin, polycarbonate resin, and polyphenylene ether resin. Meta) Examples thereof include synthetic resins such as acrylic resin, polyamide resin, polyvinyl chloride resin, novolak resin, polyurethane resin and polyisobutylene.

Examples of the thermosetting resin include synthetic resins such as polyurethane, polyisocyanurate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, and polyimide.

Rubber substances include natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, and acrylic rubber. , Epichlorohydrin rubber, polyvulverable rubber, non-vulture rubber, silicon rubber, fluororubber, urethane rubber and other rubber substances.

As these synthetic resins and / or rubber substances, one kind or two or more kinds can be used.

Among these synthetic resins and / or rubber substances, those having soft and rubber-like properties are preferable. The resin component having such properties can be highly filled with the inorganic filler, and the obtained resin composition becomes flexible and easy to handle. In order to obtain a more flexible and easy-to-handle resin composition, a non-vulcanized rubber such as butyl and a polyethylene-based resin are preferably used. Instead, an epoxy resin is preferable from the viewpoint of increasing the flame retardancy of the resin itself and improving the fire protection performance.

The heat-expandable layered inorganic substance expands when heated. The heat-expandable layered inorganic substance is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite. Thermally expandable graphite is a conventionally known substance, in which powders such as natural scaly graphite, thermally decomposed graphite, and kiss graphite are mixed with inorganic acids such as concentrated nitric acid, nitric acid, and selenic acid, and concentrated nitric acid, perchloric acid, and excess. A graphite interlayer compound was produced by treatment with a strong oxidizing agent such as chlorate, permanganate, dichromate, dichromate, hydrogen peroxide, etc., and the layered structure of carbon was maintained. It is a kind of raw crystalline compound.

The heat-expandable graphite obtained by the acid treatment as described above may be further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound or the like. The particle size of the heat-expandable graphite is preferably 20 to 200 mesh. If the particle size is larger than 200 mesh, the degree of expansion of graphite is sufficient to obtain the expanded heat insulating layer, and if the particle size is smaller than 20 mesh, the dispersibility when blended with the resin is good and the physical properties are good. be. Examples of commercially available products of heat-expandable graphite include "GREP-EG" manufactured by Tosoh Corporation and "GRAFGUARD" manufactured by GRAFTECH.

When the expanded heat insulating layer is formed, the inorganic filler increases the heat capacity and suppresses heat transfer, and also acts as an aggregate to improve the strength of the expanded heat insulating layer. The inorganic filler is not particularly limited, and for example, metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrite; calcium hydroxide, magnesium hydroxide, etc. Hydrous inorganic substances such as aluminum hydroxide and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate and barium carbonate can be mentioned.

In addition to these, as inorganic fillers, calcium salts such as calcium sulfate, gypsum fiber, and calcium silicate; silica, diatomaceous soil, dosonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, active white clay, and sepiolite. , Imogolite, sericite, glass fiber, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, Examples thereof include lead zirconate titanate, zinc stearate, calcium stearate, aluminum borate, molybdenum sulfide, silicon carbide, stainless fiber, zinc borate, various magnetic powders, slag fiber, fly ash, and dehydrated sludge. These inorganic fillers can be used alone or in combination of two or more.

The particle size of the inorganic filler is preferably 0.5 to 100 μm, more preferably 1 to 50 μm. When the amount of the inorganic filler added is small, the dispersibility greatly affects the performance, so that the inorganic filler has a small particle size, but when it is 0.5 μm or more, the dispersibility is good. When the amount added is large, the viscosity of the resin composition increases and the moldability decreases as the high filling progresses, but the viscosity of the resin composition can be decreased by increasing the particle size. A large diameter is preferable, but a particle size of 100 μm or less is desirable from the viewpoint of the surface properties of the molded product and the mechanical properties of the resin composition.

Among the inorganic fillers, specific examples of aluminum hydroxide include "Heidilite H-31" (manufactured by Showa Denko) with a particle size of 18 μm, "B325" (manufactured by ALCOA) with a particle size of 25 μm, and calcium carbonate. Examples thereof include "Whiten SB Red" (manufactured by Bikita Powder Industry Co., Ltd.) having a particle size of 1.8 μm and "BF300" (manufactured by Bikita Powder Industry Co., Ltd.) having a particle size of 8 μm.

Further, the resin composition constituting the heat-expandable refractory material may further contain a phosphorus compound in addition to the above-mentioned components in order to increase the strength of the expansion heat insulating layer and improve the fire protection performance. The phosphorus compound is not particularly limited, and for example, various phosphate esters such as red phosphorus; triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresil diphenyl phosphate, xylenyl diphenyl phosphate; sodium phosphate, Metal phosphates such as potassium phosphate and magnesium phosphate; ammonium polyphosphate; compounds represented by the following chemical formula (1) can be mentioned. Of these, red phosphorus, ammonium polyphosphate, and the compound represented by the following chemical formula (1) are preferable from the viewpoint of fire protection performance, and ammonium polyphosphate is more preferable from the viewpoint of performance, safety, cost, and the like.

In the chemical formula (1), R1 and R3 represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or a carbon number of carbon atoms. Represents 6 to 16 aryloxy groups.

As the red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of moisture resistance and safety such as not spontaneously igniting during kneading, those in which the surface of the red phosphorus particles is coated with a resin are preferably used. The ammonium polyphosphate is not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferably used from the viewpoint of handleability and the like. Examples of commercially available products include "AP422" and "AP462" manufactured by Clariant AG, "FR CROS 484" and "FR CROS 487" manufactured by Budenheim Ibica.

The compound represented by the chemical formula (1) is not particularly limited, and for example, methylphosphonate, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonate, n-propylphosphonate, n-butylphosphonate, 2-methylpropylphosphonate. Acids, t-butylphosphonates, 2,3-dimethyl-butylphosphonates, octylphosphonates, phenylphosphonates, dioctylphenylphosphonates, dimethylphosphonates, methylethylphosphinates, methylpropylphosphinates, diethylphosphonates, dioctylphosphonates Acids, phenylphosphonates, diethylphenylphosphonates, diphenylphosphonates, bis (4-methoxyphenyl) phosphonates and the like can be mentioned. Among them, t-butylphosphonic acid is preferable in terms of high flame retardancy, although it is expensive. The phosphorus compounds may be used alone or in combination of two or more.

The resin composition contains 10 to 350 parts by weight of the heat-expandable layered inorganic substance and 30 to 400 parts by weight of the inorganic filler with respect to 100 parts by weight of the resin component such as the thermoplastic resin and the epoxy resin. Is preferable.

The total amount of the heat-expandable layered inorganic substance and the inorganic filler is preferably in the range of 50 to 600 parts by weight with respect to 100 parts by weight of the resin component.

Such a resin composition expands by heating to form a refractory heat insulating layer. According to this composition, the heat-expandable refractory material expands by heating such as a fire to obtain a required coefficient of thermal expansion, and after expansion, a residue having a predetermined heat insulating performance and a predetermined strength is formed. It is also possible to achieve stable fire protection performance.

When the total amount of the heat-expandable layered inorganic substance and the inorganic filler in the resin composition is 50 parts by weight or more, sufficient fire resistance is obtained by satisfying the residual amount after combustion, and when it is 600 parts by weight or less, it is mechanical. Physical characteristics are maintained.

Further, the resin composition used in the present invention is, if necessary, an antioxidant such as a phenol-based, amine-based, or sulfur-based antioxidant, a metal damage inhibitor, and an antistatic agent, as long as the object of the present invention is not impaired. Additives such as inhibitors, stabilizers, cross-linking agents, lubricants, softeners, pigments, tackifier resins, molding aids, and tackifiers such as polybutene and petroleum resins can be included.

The heat-expandable refractory material is available as a commercial product. For example, a fire barrier manufactured by Sumitomo 3M Co., Ltd. (a heat-expandable refractory material composed of a resin composition containing chloroprene rubber and vermiculite, expansion coefficient: 3 times, heat Conductivity: 0.20 kcal / m · h · ° C), Mitsui Kinzoku Paint Co., Ltd.'s Medihicut (coefficient of thermal expansion made of a resin composition containing a polyurethane resin and heat-expandable graphite, expansion coefficient: 4 times, heat (Conductivity: 0.21 kcal / m · h · ° C)), a heat-expandable refractory material such as Fiblock manufactured by Sekisui Chemical Industry Co., Ltd. can also be mentioned.

The heat-expandable refractory material is not particularly limited as long as it is insulated by the expansion layer when exposed to a high temperature such as in a fire and has the strength of the expansion layer. It is preferable that the volume expansion coefficient after heating for 30 minutes under the heating condition of 50 kW / m2 is 3 to 50 times. When the volume expansion coefficient is 3 times or more, the expansion volume can sufficiently fill the burned portion of the resin component, and when the expansion volume is 50 times or less, the strength of the expansion layer is maintained and the penetration of flame is prevented. The effect is maintained.

The porous piece 7 (FIG. 1) is filled between the inner surface of the through hole 16 (inner surface of the sleeve) and the outer surface of the pipe 5 or the like in order to minimize sound leakage and odor leakage through the through hole 16. be. The porous piece 7 is formed of a combustible material such as glass wool or rock wool, and is excellent in sound absorption and odor adsorption due to its porous structure. Each of the porous pieces 7 is a torn porous sheet material, and has an arbitrary size and shape that can be inserted between the inner surface of the through hole 16 (inner surface of the sleeve) and the outer surface of the pipe 5 or the like. Has.

As shown in FIGS. 1 and 2, the cap 30 has an annular shape and has an opening 31 inside the cap 30. The inner diameter of the cap 30 is equal to or larger than the outer diameter of the pipe 5 or the like. The cap 30 is installed at the upper end of the sleeve 10 so that the pipe 5 or the like is inserted into the inner opening 31.

More specifically, the cap 30 has a cap body 32 and legs 34 having a diameter smaller than that of the cap body 32. The outer diameter of the cap body 32 is larger than the outer diameter of the sleeve 10 (and the sleeve body 12), and the cap body 32 is installed on the upper end 13a of the sleeve 10. The outer diameter of the leg portion 34 is smaller than the inner diameter of the sleeve 10 (and the sleeve body 12), and the leg portion 34 is arranged so as to be sandwiched between the inner surface of the sleeve 10 and the outer surface of the pipe 5 or the like.

A cut 33 is formed in the cap 30. The cut 33 penetrates the cap body 32 and the leg portion 34 in the thickness direction to divide the cap 30. The cut 33 is formed so as to allow the pipe 5 or the like to pass through the opening 31 even when the pipe 5 or the like has already been passed through the through hole 16. That is, if one end and the other end of the cap 30 facing each other are grasped through the cut 33, the diameter of the cap 30 is expanded and the cap 30 is wound around the pipe 5, etc., the pipe 5 or the like is passed through the through hole 16. Even in this state, the pipe 5 or the like can be passed through the opening 31.

The cap 30 is made of a non-metal having high vibration damping properties. Specifically, the cap 30 is formed of a resin having high vibration damping properties such as vinyl chloride, polyurethane, or rubber, and has a loss tangent of 0.1 to 1 at a frequency of 1 to 5000 Hz. Further, the cap 30 may be colored differently from the sleeve 10 (for example, coloring such as red, yellow, orange, blue, green, etc.) so as to be visually distinguishable from the sleeve 10. Further, the color of the cap 30 may be a fluorescent color so that it can be visually distinguished even at night. Further, a finishing layer such as a coating may be further applied to the cap 30 so as to give an aesthetic appearance.

As shown in FIGS. 1 and 2, the fixing member 50 has an annular shape and has an opening 51 inside thereof. The inner diameter of the fixing member 50 is the same as the outer diameter of the pipe 5 or the like. The fixing member 50 is fastened to the pipe 5 or the like so that the pipe 5 or the like is inserted through the inner opening 51 and comes into contact with the surface 30a (upper surface of the cap body 32) on the side opposite to the through hole 16 in the cap 30. Will be done.

More specifically, the fixing member 50 is formed by laminating an annular metal component 52 and an annular resin component 53 vertically so that their centers coincide with each other. The metal part 52 is formed of a heavy metal such as stainless steel, iron, or galvanized steel, and has excellent sound insulation. The resin part 53 is formed of foamed polyurethane or the like. The resin component 53 is provided to increase friction with the pipe 5 and the like. The metal part 52 and the resin part 53 are integrally connected by using a screw, an adhesive, or the like, or by caulking or the like.

A cut 54 is formed in the fixing member 50. The cut 54 penetrates the metal part 52 and the resin part 53 in the thickness direction to divide the fixing member 50. The cut 54 is formed so that the pipe 5 or the like can be inserted into the opening 51 even when the pipe 5 or the like has already been passed through the through hole 16. That is, if one end and the other end of the fixing member 50 facing each other are gripped through the cut 54, the diameter of the fixing member 50 is expanded and the fixing member 50 is wound around the pipe 5 or the like, the pipe 5 or the like is formed in the through hole 16. Even in the state of being passed through, the pipe 5 and the like can be passed through the opening 51.

Flange 55 and 56 are formed on one end and the other end of the metal component 52. These flanges 55 and 56 are joined together with the pipe 5 and the like inserted through the opening 51, and the fixing member 50 is fastened to the pipe 5 and the like by screwing the joined flanges 55 and 56. Will be done.

Next, the construction method of the compartment penetration structure 100 of the present embodiment will be described with reference to FIGS. 4 (a) to 4 (f).

First, as shown in FIG. 4A, the sleeve 10 is fixed to the floor base 1. The sleeve 10 is fixed to the floor base 1, for example, by screwing the bolt 28 through the hole 26 of the mounting portion 24 of the lower end 13b of the sleeve 10 into the floor base 1. A hole for inserting the pipe 5 or the like (FIG. 4 (c)) is provided at a position corresponding to the sleeve 10 on the bottom of the mold 2.

Next, as shown in FIG. 4B, the concrete 3 is poured into the floor base 1. In FIG. 4B, the thickness or height H of the concrete 3 is equal to the distance from the lower end 13b of the sleeve body 12 to the upper end 13a of the sleeve body 12. In this way, the concrete 3 is cast around the outside of the sleeve 10, leaving the opening 19 inside the sleeve 10. The opening 19 inside the sleeve 10 functions as a through hole 16 that communicates the upper floor and the lower floor. Here, since the lowermost rib 12b provided on the sleeve body 12 is provided at a position slightly higher than the lower end 13b of the sleeve body 12, when the concrete 3 is cast around the sleeve 10, it is the most. A space 12c formed by a portion of the sleeve body 12 below the lower surface of the lower rib 12b, a lowermost rib 12b, and a mounting portion 24 protruding from the lower end 13b of the sleeve body 12 (FIG. 3). The concrete 3 enters the concrete 3), and the sleeve 10 is more firmly fixed in the concrete 3.

Next, as shown in FIG. 4C, a pipe 5 or the like is inserted into the through hole 16 so as to penetrate the concrete 3.

Next, as shown in FIG. 4D, the space K between the inner surface of the through hole 16 (inner surface of the sleeve 10) and the outer surface of the pipe 5 or the like is filled with the porous piece 7. At this time, a porous sheet made of a combustible material such as glass wool or rock wool is prepared, and the porous piece 7 obtained by cutting the porous sheet into an appropriate size is put into the space K. .. Then, this charging operation is repeated until the space K is completely filled with the porous pieces 7, so that the space is filled with the porous pieces 7. The porous pieces 7 charged into the space K are held in the space K by generating a repulsive force against the compression of these pieces.

Next, as shown in FIG. 4 (e), the cap 30 is installed at the upper end of the through hole 16 (the upper end of the sleeve 10) so that the pipe 5 and the like are passed through the opening 31 inside the cap 30, and the sleeve. The space between the inner surface of 10 and the outer surface of the pipe 5 or the like is covered with a cap 30.

Next, as shown in FIG. 4 (f), the pipe 5 or the like is passed through the opening 51 inside the fixing member 50, and the fixing member 50 comes into contact with the surface 30a on the opposite side of the through hole 16 in the cap 30. The fixing member 50 is fastened to the pipe 5 or the like.

According to the present embodiment, since the porous piece 7 is filled between the through hole 16 and the pipe 5 and the like, the space between the through hole 16 and the pipe 5 and the like is compared with the case where a conventional heat insulating sheet is used. Can be filled more tightly. That is, for example, when a pipe 5 or the like around which a conventional heat insulating sheet is wound is inserted into the through hole 16, the heat insulating sheet has a predetermined thickness (that is, the thickness of the heat insulating sheet is the same as that of the water supply pipe or the like and the through hole. The width between the through hole 16 and the pipe 5 etc. does not match the thickness of the heat insulating sheet, and the through hole 16 and the pipe 5 etc. There may be situations where the gap is not completely filled. On the other hand, in the present embodiment, the filling amount of the porous piece 7 is adjusted according to the width between the through hole 16 and the pipe 5 and the like, so that the space between the through hole 16 and the pipe 5 and the like is adjusted. It can be filled with the porous piece 7 without any gap. Therefore, according to the present embodiment, sound leakage and odor leakage through the through hole 16 can be suppressed to be small. Further, by arranging the porous piece 7 around the pipe 5 or the like, the heat of the fluid passing through the pipe 5 or the like can be kept warm.

When a fire breaks out from downstairs, as shown in FIG. 5, the sleeve 10 expands due to the heat of the fire, and the gap between the sleeve 10 and the pipe 5 or the like is filled. This prevents the fire from propagating upstairs through the through hole 16 (opening of the sleeve 10). A porous piece 7 is filled between the through hole 16 and the pipe 5 and the like (FIGS. 1 and 4 (f)), but if the porous piece 7 is formed of a combustible material, the porous piece 7 is porous in the event of a fire. The plaque 7 burns and disappears. Therefore, the porous piece 7 does not interfere with the thermal expansion of the sleeve 10. Therefore, the thermal expansion of the sleeve 10 can surely fill the gap between the sleeve 10 and the pipe 5 and the like.

Further, since the cap 30 covers the space between the through hole 16 and the pipe 5, etc., the partition penetrating structure 100 is further imparted with fire resistance. Further, when the compartment penetration structure 100 is viewed from above, the cap 30 covers the top of the sleeve 10 and covers the space between the through hole 16 and the pipe 5 or the like around the pipe 5 or the like, so that it serves as a blindfold. As a result, the inside of the through hole 16 cannot be seen, and the visual appearance is maintained. Further, by covering the space between the through hole 16 and the pipe 5 or the like with the cap 30, it is possible to reduce the sound transmitted from under the floor. Further, when the fluid passes through the pipe 5, the pipe 5 vibrates, but since the cap 30 is made of a non-metal having high vibration damping property, the vibration of the pipe 5 is absorbed by the cap 30. Therefore, it is possible to prevent the position of the cap 30 from being displaced due to the vibration of the pipe 5. Further, since the cap 30 is made of non-metal, it is possible to prevent damage to the pipe 5 and the like due to contact with the cap 30.

Further, the fixing member 50 fastened to the pipe 5 presses the cap 30, so that the cap 30 can be prevented from being rubbed up by the vibration of the pipe 5. Therefore, it is possible to maintain a state in which the space between the through hole 16 and the pipe 5 is covered with the cap 30. Further, since the fixing member 50 includes the heavy metal part 52, it is possible to surely prevent the cap 30 from rubbing up. Further, when the fixing member 50 includes the resin component 53, the friction between the fixing member 50 and the pipe 5 or the like can be increased. Therefore, since the fixing member 50 is prevented from being rubbed up, the state in which the cap 30 is pressed by the fixing member 50 is maintained.

The present invention is not limited to the above embodiment, and various modifications can be made.

Further, instead of the fixing member 50 shown in FIG. 2, the fixing members 120 and 130 shown in FIGS. 6 and 7 may be used. These fixing members 120 and 130 are a combination of a pair of halves, and the recesses formed in the halves form an opening for passing the pipe 5 and the like.

Specifically, the fixing member 120 shown in FIG. 6 has a pair of half-split bodies 121 and 121 and a shaft member 122 that connects the pair of half-split bodies 121 and 121 at a first end portion. The semi-circular metal parts 123 and the resin parts 124 are vertically laminated in the half-split bodies 121 and 121, respectively, and the semi-circular recesses 121a and 121a are formed in the half-split bodies 121 and 121, respectively. It is formed. In this fixing member 120, the half-split bodies 121 and 122 open and close around the shaft member 122, and flanges 125 and 126 are provided at the second end portion on the side opposite to the shaft member 122 ( Flange 125, 126 is a part of metal part 123). When the fixing member 120 is closed so that the flanges 125 and 126 are in contact with each other, the above-mentioned openings are formed inside by the recesses 121a and 121a, and the pipe 5 and the like are passed through the openings. Then, the fixing member 120 is fastened to the pipe 5 or the like by screwing the attached flanges 125 and 126.

The fixing member 130 shown in FIG. 7 has a pair of halves 131, 131. The semicircular bodies 131 and 131 are formed by laminating semicircular metal parts 132 and resin parts 133 on the upper and lower sides, respectively, and the semicircular recesses 131a and 131a are formed in the semicircular bodies 131 and 131, respectively. Has been done. Flange 134, 134 is provided at one end of the half-split body 131, 131, and flanges 135, 135 are provided at the other end of the half-split body 131, 131, and the flanges 134, 134 are brought together. When the half-split bodies 131 and 131 are connected and closed so that the flanges 135 and 135 are brought together, an opening is formed inside by the recesses 131a and 131a, and the pipe 5 and the like are inserted through the opening. .. Then, the fixing member 130 is fastened to the pipe 5 or the like by screwing the flanges 134, 134 and the flanges 135, 135 together.

The metal parts 123 and 132 (FIGS. 6 and 7) described above are formed of a heavy metal such as stainless steel, iron, or galvanized steel, and are excellent in sound insulation. The resin parts 122 and 133 are made of foamed polyurethane or the like. The metal part 123 and the resin part 122, and the metal part 132 and the resin part 1333 are integrally connected by using a screw, an adhesive, or the like, or by caulking or the like.

When the fixing members 50, 120, 130 shown in FIGS. 2, 6, and 7 are used, the space between the inner surface of the fixing members 50, 120, 130 and the outer surface of the pipe 5 or the like is non-fire resistant or It may be filled with refractory putty, cotton or the like. By doing so, sound leakage and odor leakage through the through hole 16 can be further reduced.

Further, in order to protect the fixing members 50, 120 and 130 from damage and the like, the fixing members 50, 120 and 130 may be coated with a resin such as an olefin resin or a vinyl chloride resin or a coating material such as a paint. Further, in order to reduce friction due to contact between the fixing members 50, 120, 130 and the pipe 5, the inner surface of the fixing members 50, 120, 130 may be rounded or a sliding surface may be provided with a lubricating coating.

Further, in the fixing members 50, 120 and 130 shown in FIGS. 2, 6 and 7, the resin parts 53, 124 and 133 may be omitted.

Further, the flanges 55 and 56 shown in FIG. 2, the flanges 125 and 126 shown in FIG. 6, and the flanges 134, 134, 135 and 135 shown in FIG. 7 may also be omitted. In this case, for example, the fixing members 50, 120, 130 can be fastened to the pipe 5 or the like by providing a screw that penetrates the fixing members 50, 120, 130 in the radial direction and screwing the tip of the screw into the pipe 5 or the like. ..

Further, the cut 33 shown in FIG. 2 does not have to be formed on the cap 30. The cap 30 can be attached to one end of the sleeve 10 before the pipe 5 or the like is passed through the through hole 16 without forming the cut 33, and the pipe 5 can be attached even after the pipe 5 or the like is passed through the through hole 16. It can also be attached by passing the end portion of the cap 30 through the opening 31 of the cap 30 and moving the cap 30 to the position of the sleeve 10 along the pipe 5 or the like.

Further, instead of the cap 30 shown in FIG. 2, the caps 35 and 40 shown in FIGS. 8 (a) and 8 (b) may be used. The caps 35 and 40 are a combination of a pair of halves, and the recesses formed in each halves form an opening corresponding to the pipe 5 and the like.

Specifically, the cap 35 shown in FIG. 8A has a pair of semicircular bodies 36, 36 and a shaft member 37 connecting the pair of semicircular bodies 36, 36 at the first end portion. The semicircular recesses 39a and 39a are formed in the halves 36 and 36, respectively. In this cap 35, a pair of half-split bodies 36, 36 open and close around a shaft member 37, and a pair of half-split bodies 36, 36 are a pair of fitting portions at a second end portion on the opposite side of the support member 37. When connected via 38 and closed, the above-mentioned openings are formed inside by the recesses 39a and 39a, and the pipe 5 and the like can be passed through the openings.

The cap 40 shown in FIG. 8B has a pair of half-split bodies 41 and 42, and semi-circular recesses 45a and 45a are formed in the half-split bodies 41 and 42, respectively. Fitting portions 43 and 44 for mating with each other are provided at both ends of the half split bodies 41 and 42, and the half split bodies 41 and 42 are connected via the fitting portions 43 and 44. When closed, the above-mentioned openings are formed inside by the recesses 45a and 45a, and the pipe 5 and the like can be passed through the openings.

When the caps 30, 35, 40 shown in FIGS. 2 and 8 are used, a non-fireproof or fireproof putty or a fireproof putty is used between the inner surface of the caps 30, 35, 40 and the outer surface of the pipe 5 or the like. The caps 30, 35, 40 may be fixed by filling with cotton or the like. By doing so, the caps 30, 35, and 40 can cover the space between the sleeve 10 and the pipe 5, etc. without any gaps, so that sound leakage and odor leakage through the through hole 16 can be more reliably reduced.

Further, in order to protect the caps 30, 35, 40 from damage, the caps 30, 35, 40 may be coated with a resin such as an olefin resin or a vinyl chloride resin, or a coating material such as a paint. Further, in order to reduce friction due to contact between the caps 30, 35, 40 and the pipe 5, the inner surface of the caps 30, 35, 40 may be rounded or a sliding surface may be provided with a lubricating coating.

Further, the sleeve 10 can be deformed as shown in FIG. The sleeve 10 shown in FIG. 9 includes a hollow substantially cylindrical sleeve main body 12 and an annular flange 14 provided at the upper end of the sleeve main body 12. The sleeve body 12 is formed of a single rectangular sheet-like member, and the flange 14 is also formed of a single annular sheet-like member. The flange 14 extends outward from the sleeve body 12 in the axial direction A of the sleeve 10. As shown in FIG. 10A, which will be described later, the width W of the flange 14 is larger than the thickness T of the sleeve body 12.

Returning to FIG. 10A, an annular fixture 20 as a sleeve fixing member for fixing the sleeve body 12 to the floor base 1 (see FIG. 2) is attached to the lower end of the sleeve body 12. The fixture 20 has a metal ring 22 having an inner diameter suitable for the outer diameter of the sleeve body 12, and a plurality of mounting portions 24 (four in FIG. 10A) arranged apart from each other on the ring 22. Each mounting portion 24 has a hole 26 for passing a bolt 28 (FIG. 10 (a)).

In this embodiment, the sleeve body 12 and the flange 14 are integrally molded from the same heat-expandable refractory resin material. The refractory resin material is a resin composition containing a heat-expandable layered inorganic substance and an inorganic filler as resin components. The composition of this resin composition is as described in the first embodiment.

Next, a method of constructing the compartment penetrating structure 100 using the sleeve 10 shown in FIG. 9 will be described with reference to FIGS. 10 (a) to 10 (f).

First, as shown in FIG. 10A, a fixture 20 is attached to the lower end of the sleeve 10 to fix the sleeve 10 to the floor base 1. The sleeve 10 is fixed to the floor base 1, for example, by screwing the bolt 28 through the hole 26 of the mounting portion 24 into the floor base 1.

Next, as shown in FIG. 10B, the concrete 3 is poured into the floor base 1. At this time, the thickness, that is, the height H of the concrete 3 is equal to the distance from the lower end 13b of the sleeve body 12 to the lower surface 15 of the flange 14. In this way, the concrete 3 is cast around the outside of the sleeve 10, leaving the opening 19 inside the sleeve 10. The opening 19 inside the sleeve 10 functions as a through hole 16 that communicates the upper floor and the lower floor.

Next, as shown in FIG. 10 (c), the pipe 5 or the like is inserted into the through hole 16 so as to penetrate the concrete 3.

Next, as shown in FIG. 10D, the space K between the inner surface of the through hole 16 (inner surface of the sleeve 10) and the outer surface of the pipe 5 or the like is filled with the porous piece 7.

Next, as shown in FIG. 10 (e), the cap 30 is installed at the upper end of the through hole 16 (the upper end of the sleeve 10) so that the pipe 5 or the like is passed through the opening 31 inside the cap 30 and penetrates. A cap 30 covers the space between the inner surface of the hole 16 (inner surface of the sleeve 10) and the outer surface of the pipe 5 or the like. FIG. 10 (e) shows an example in which the cap 30 shown in FIG. 2 is installed at the upper end of the through hole 16 (the upper end of the sleeve 10), but the caps 35 and 40 shown in FIG. 8 are installed at the upper end of the sleeve 10. May be done.

Next, as shown in FIG. 10 (f), the pipe 5 or the like is passed through the opening 51 inside the fixing member 50, and the fixing member 50 comes into contact with the surface 30a on the opposite side of the through hole 16 in the cap 30. The fixing member 50 is fastened to the pipe 5 or the like. Although FIG. 10F shows an example in which the fixing member 50 shown in FIG. 2 is fastened to the pipe 5 or the like, the fixing members 120 and 130 shown in FIGS. 6 and 7 may be fastened to the pipe 5 or the like. ..

When a fire breaks out from downstairs, as shown in FIG. 11, the sleeve body 12 and the flange 14 of the sleeve 10 expand due to the heat of the fire, and the gap between the sleeve 10 and the pipe 5 or the like is filled. This prevents the fire from propagating upstairs through the opening (through hole 16) of the sleeve 10.

As shown in FIG. 9, the sleeve body 12 and the flange 14 may be provided with continuous cuts 17 that pass from the upper end to the lower end of the sleeve 10 along the longitudinal direction of the sleeve 10. If the sleeve 10 is formed of a refractory resin composition containing an elastic resin component such as butyl rubber and a cut 17 extending from one end of the sleeve 10 to the other is provided along the longitudinal direction of the sleeve 10, the concrete 3 of the sleeve 10 is provided. It is easy to attach / detach from the sleeve 10 or from the pipe 5 or the like of the sleeve 10. For example, it is possible to construct the pipe 5 and the like first, and then apply the sleeve 10 around the pipe 5 and the like. Further, the cut 17 in FIG. 9A shows a straight cut along the axial direction of the sleeve 12, but as shown in FIG. 9B, a cut running diagonally through the sleeve 12 (for example, a spiral shape). ) May be.

Further, the sleeve body 12 and the flange 14 may be formed of different heat-expandable refractory resin materials, or the sleeve body 12 may be formed of a heat-expandable refractory resin material and the flange portion may be formed of metal. good. Even in such a case, at least the sleeve body 12 expands in the event of a fire, and the spread of fire through the sleeve 10 is prevented.

Further, the flange 14 may be omitted, and in this case, the cap 30 may be mounted on the sleeve body 12.

Further, the number of mounting portions 24 of the fixture 20 is not limited to four, and may be any number sufficient to fix the sleeve 10 to the floor base 1.

Further, the fixture 20 may be made of a material other than metal. For example, the fixing portion 20 may be formed of a flammable resin material. In another preferred embodiment, the fixture 20 is formed from a hard resin, such as hard vinyl chloride. When the fixing portion 20 is made of hard resin, strength is given to the lower end portion of the sleeve 10 to which the sleeve 10 fixing portion 20 is attached, and the sleeve 10 is deformed by the pressure of the poured concrete 3 when the concrete 3 is placed. Can be prevented or suppressed.

Further, the fixture 20 may be omitted.

Further, the sleeve 10 shown in FIG. 9 may also be provided with ribs such as the ribs 12a and / or 12b shown in FIG. 2 to reinforce the strength of the sleeve 10.

The sleeve 10 can also be deformed as shown in FIGS. 12 (a) and 12 (b) (in FIG. 12, the cap, the fixing member, and the porous piece are not shown).

In the sleeve 10 shown in FIGS. 12 (a) and 12 (b), one or a plurality of positioning portions 10a projecting inward from the inner peripheral surface of the sleeve main body 12 are provided. As shown in FIG. 12A, the positioning portions 10a are located at two locations above and below the center of the sleeve 10 in the longitudinal direction along the longitudinal direction of the sleeve 10, specifically, two locations near the upper end and the lower end of the sleeve 10. It is provided in the place. When viewed in the end view as shown in FIG. 12 (b), the positioning portions 10a (four in the figure) are arranged at equal intervals. There is a gap between the positioning portion 10a and the pipe 5 and the like. With such a configuration, when the pipe 5 or the like is arranged in the sleeve 10 in the work corresponding to FIG. 10 (c), the positioning portion 10a positions the pipe 5 or the like with a small deviation in the sleeve 10. To support. If the positioning portion 10a protrudes inward for a long time, the pipe 5 and the like are arranged (centered) at the axial center position in the sleeve 10 without being substantially displaced or tilted.

The positioning unit 10a may be further changed as shown in FIG. 12 (c). Specifically, along the longitudinal direction of the sleeve 10 (sleeve body 12), a positioning portion 10b is provided on the center side of the positioning portion 10a, a positioning portion 10c is provided on the center side of the positioning portion 10b, and the positioning portion 10b is provided. The protruding length of the positioning portion 10c is larger than that of the positioning portion 10a, and the protruding length of the positioning portion 10c is larger than that of the positioning portion 10b. However, it is preferable that there is a gap between the positioning portion 10c and the pipe 5 or the like when the pipe 5 or the like is arranged in the sleeve 10 so that the pipe 5 or the like does not come into contact with the positioning portion 10c and be damaged. With such a configuration, when the pipe 5 or the like is arranged in the sleeve 10, the pipe 5 or the like is arranged at the axial center position in the sleeve 10 regardless of whether the pipe 5 or the like is arranged from above or from below. Is guided. The positions of the positioning portions 10a, 10b and 10c in the radial direction of the sleeve 10 are preferably aligned, but the number of the positioning portions 10a, 10b and 10c of the sleeve 10 in the longitudinal direction and the radial direction is not limited. Furthermore, any one of the positioning portions 10a, 10b and 10c may be omitted.

Although not shown in FIG. 12, even when the sleeve 10 shown in FIG. 12 is used, the porous piece 7 is formed in the space between the inner surface of the through hole 16 (inner surface of the sleeve 10) and the outer surface of the pipe 5 or the like. Is filled. Further, the cap is installed at the upper end of the through hole 16 (upper end of the sleeve 10) so that the pipe 5 or the like can be passed through the opening of the cap (caps 30, 35, 40) described above, and the inner surface (sleeve) of the through hole 16 is installed. The space between the inner surface of 10) and the outer surface of the pipe 5 or the like is covered with a cap. Further, the fixing member is connected to the pipe 5 so that the pipe 5 or the like is passed through the openings of the fixing members (fixing members 50, 120, 130) described above and the fixing member is in contact with the surface of the cap opposite to the through hole 16. Etc. are concluded.

Further, as shown in FIGS. 13 (a) and 13 (b), the sleeve 10 is attached to the sleeve body 12 for fixing the sleeve 10 to the floor base (beam or wall of a building made of reinforced concrete) at the time of placing concrete. An integrally formed sleeve fixing portion 60 may be further provided. The sleeve fixing portion 60 as a sleeve fixing member is also referred to as a sleeve holder.

The sleeve fixing portion 60 is made of synthetic resin and is integrally formed with the sleeve body 12 by injection molding. In one preferred embodiment, the sleeve fixing portion 60 is made of a thermoplastic resin such as polypropylene and has appropriate flexibility. In another preferred embodiment, the sleeve fixing portion 60 is formed of the same heat-expandable refractory resin material as the sleeve body 12. According to this aspect, the manufacturing cost can be suppressed. In another preferred embodiment, the sleeve fixing portion 60 is formed from the same refractory resin material from which the heat-expandable graphite is removed from the sleeve body 12, and is integrally formed with the sleeve body 12 by two-color formation. According to this aspect, the appearance of the sleeve fixing portion 60 is improved, and the strength is also improved.

In another preferred embodiment, as shown in FIG. 14, the sleeve fixing portion 60 is formed separately from the sleeve body 12. The sleeve fixing portion 60 includes an annular (annular in FIG. 14) member 64 having dimensions to be mounted on the outside of the sleeve 10. According to this aspect, since the sleeve main body 12 may be tubular, the sleeve main body 12 can be manufactured by extrusion molding, which facilitates the manufacture. In one preferred embodiment, the sleeve fixing portion 60 is made of a flammable resin material and is burned by heat such as a fire. Therefore, the sleeve fixing portion 60 may remain attached to the sleeve 10 even after the concrete is laid. In another preferred embodiment, the sleeve fixing portion 60 is formed of a hard resin such as hard vinyl chloride. When the sleeve fixing portion 60 is made of hard resin, strength is given to the lower end portion of the sleeve 10 to which the sleeve fixing portion 60 is mounted, and the sleeve 10 is deformed by the pressure of the poured concrete 3 when the concrete 3 is placed. Can be prevented or suppressed.

In the examples shown in FIGS. 13 and 14, a clip portion 61 formed so that the reinforcing bar R is fitted is provided at one end of the sleeve fixing portion 60. The clip portion 61 has a substantially C-shaped cross section in which a part of the peripheral surface of the substantially cylindrical cylinder is opened, and the inner diameter thereof is formed so as to be slightly smaller than the outer diameter of the reinforcing bar R to be fitted. In this embodiment, the axis C ₁ of the clip portion 61 is perpendicular to _{the axis C 2} of the sleeve 10 (sleeve body 12), _{but the axis C 1} of the clip portion 61 is the axis C 1 of the sleeve 10 (sleeve body 12). An acute angle (for example, 45 °) may be made with respect to _{C 2.} A pair of guide lip portions 62 that are folded back in the widening direction are formed at the opposite open end edges of the clip portions 61 in order to facilitate fitting of the reinforcing bars R. An arm portion 63 is continuously formed on the clip portion 61 and projects laterally to the clip portion 61. The cross section of the arm portion 63 is formed in a substantially cross shape to enhance the rigidity of the clip portion 61. The tip of the arm portion 63 is connected to the sleeve body 12.

The position of the sleeve fixing portion 60 along the longitudinal direction of the sleeve 10 is not particularly limited, but the sleeve fixing portion 60 is set to a position where the sleeve fixing portion 60 can be attached to an arbitrary position of the reinforcing bar R via the clip portion 61. When the pipe length of the sleeve 10 becomes long, it is also possible to hold the sleeve 10 by two or more sleeve fixing portions 60 attached apart from each other in the pipe length direction of the sleeve 10. In addition or instead, two or more sleeve fixing portions 60 may be arranged in the circumferential direction of the sleeve 10. The sleeve fixing portion 60 of the present invention can be attached to both the horizontally arranged reinforcing bars R and the vertically arranged reinforcing bars R (for example, the stirrup of a beam), and the sleeve is not required. The fixing portion 60 can also be cut from the sleeve body 12.

The method of constructing the through hole 16 using the sleeve fixing portion 60 is as follows. First, the reinforcing bars are assembled in the formwork of the beam or the wall, and the clip portion 61 of the sleeve 10 fixture 60 is attached to at least one reinforcing bar R to position the sleeve 10. Next, concrete is poured into the formwork, and the sleeve 10 is embedded and fixed in the concrete with the sleeve fixing portion 60 provided. If the concrete is removed after it has hardened, a through hole 16 is formed in the sleeve 10. By using the sleeve fixing portion 60 in this way, the sleeve 10 can be easily and accurately positioned without using a tool in particular.

Further, as shown in FIGS. 15 (a) to 15 (d), the sleeve 10 provided with the sleeve body 12 containing the heat-expandable refractory resin material is non-thermally expanded along the axial direction of the sleeve 10. Sleeves 70 containing the sex material may be further stacked. The sleeve 70 may be placed either above, below, or above and below the sleeve 10. The sleeve 70 may have the same configuration as the sleeve 10, but the sleeve body 12 of the sleeve 10 is made of a heat-expandable refractory resin material, whereas the hollow sleeve body 72 of the sleeve 70 is the sleeve body 12. Is made of non-thermally expandable materials such as hard vinyl chloride and metal, which are different materials. Preferably, the sleeve 70 is formed from a non-thermally expandable refractory resin material such as rigid vinyl chloride.

According to this tower type configuration, even when the thickness of the concrete floor is increased, the thickness of the sleeve 10 that is insufficient can be adjusted by stacking the sleeves 70. Since the sleeve 70 formed of hard vinyl chloride is cheaper than the sleeve 10 formed of a heat-expandable material, the thickness of the entire sleeve structure can be increased by adjusting the thickness of the sleeve 70 using one type of sleeve 10. The sleeve 10 can be applied to the placement of concrete of different thicknesses such as 150 mm, 180 mm, 210 mm while adjusting and keeping costs down.

FIG. 15A is an embodiment of a sleeve structure in which a sleeve 70 is stacked under a sleeve 10. Since the lower half is the sleeve 70 containing a non-thermally expandable refractory resin material, the strength of the lower opening of the sleeve body 12 can be increased. The sleeve 70 may include an annular fixture 20.

FIG. 15B is an embodiment of a sleeve structure in which the sleeve 70 is stacked on the sleeve 10. Since the upper half of the sleeve 70 contains a non-thermally expandable refractory resin material, the strength of the upper opening of the sleeve body 12 can be increased. Optionally, one or more connectors 73 made of metal or the like for fixing the sleeve 10 and the sleeve 70 may be erected between the sleeve 10 and the sleeve 70. An annular reinforcing tool 79 that keeps the shape of the opening circular may be attached to the opening of the sleeve 70 containing the non-thermally expandable refractory resin material. In this embodiment, the annular reinforcing tool 79 has an annular main body 79a having a dimension of fitting to the inner peripheral surface of the sleeve 10, and four annular main bodies 79a that extend radially outward through the center of the annular main body 79a. It is provided with a reinforcing member 79b composed of a portion.

The annular reinforcing tool 79 may be provided with an opening of the sleeve 70 in the lower half as shown in FIG. 15A. In this case, the annular reinforcing tool 79 may be provided with a mounting portion 24. .. The annular reinforcing tool 79 may be provided on the sleeve 10. By forming the annular reinforcing tool 79 in the upper opening or the lower opening of the sleeve 10 and / or the sleeve 70, the strength of the opening can be increased and damage or deformation during transportation or construction can be prevented. .. When the opening is circular, the annular reinforcing tool can prevent the opening from being deformed into an elliptical shape. Further, as shown in FIG. 15B, a fixture 20 formed of a heat-expandable or non-heat-expandable refractory resin material is extrapolated and attached to the lower end of the sleeve 10. The fixture 20 has one or more (four in the figure) mounting portions 24 similar to those described in FIG. 2, and each mounting portion 24 has a sleeve 10 attached to a formwork 2, a reinforcing bar R, a concrete 3, or the like. A hole 26 is provided for passing a metal wire such as a wire and a fixing member such as a bolt, a screw, and a nail to fix the concrete wire. Preferably, if the entire fixture 20 is formed of a hard resin such as hard vinyl chloride, it is possible to prevent damage or deformation of the sleeve 10 during transportation or concrete placement. Further, the fixture 20 can be burned by the heat generated by the fire.

Instead of the fitting 73, the upper sleeve 10 may include a reduced diameter fitting 74 for fitting into the lower sleeve 70, as shown in FIG. 15 (c). The outer diameter of the fitting portion 74 of the sleeve 10 is smaller than or substantially the same as the inner diameter of the main body of the sleeve 70. In FIG. 15C, the sleeve 10 and the sleeve 70 may be arranged upside down. Alternatively, as shown in FIG. 15 (d), the lower sleeve 70 may include a reduced diameter fitting 75 for fitting into the upper sleeve 10. The outer diameter of the fitting portion 75 of the sleeve 70 is smaller than or substantially the same as the inner diameter of the main body of the sleeve 10. In FIG. 15D, the sleeve 10 and the sleeve 70 may be arranged upside down.

As shown in FIG. 16, the sleeve 10 may be vertically symmetrical in the axial direction. That is, the sleeve 10 is provided with the same number of mounting portions 24 at the same positions on the upper end and the lower end. With such a configuration, it is possible to prevent the operator from erroneously using the upper and lower parts of the sleeve 10, and the sleeve 10 can be installed efficiently.

As shown in FIG. 17, the main body 12 of the sleeve 10 may be provided with a scale 76. The scales may be provided at arbitrary intervals such as 1 mm intervals and 1 cm intervals. The scale 76 may be an arbitrary display such as a notch, a dent, a convex portion, a marker, a sticker, etc. provided on the main body 12. A numerical value may be further attached to the side of the scale 76. Further, instead of the main body 12, a scale 76 may be provided on the rib 12a extending in the vertical direction of the sleeve 10. By providing the scale 76, the height at which the concrete 3 is poured can be confirmed and adjusted.

Further, as shown in FIG. 17, in order to prevent dust and the like from entering the opening 19 of the sleeve 10 before, during, or after the concrete 3 placing work, a cover material 77 made of paper or the like covering the opening 19 is covered. You may. If the cover material 77 is made of paper, it can be burned and discarded. In the present embodiment, the cover material 77 has a substantially circular shape that fits the opening of the sleeve 10, but may have an arbitrary shape such as a rectangular shape or an irregular shape.

Instead of the plurality of mounting portions 24 of the sleeve 10, as shown in FIG. 18, a rectangular mounting portion 24 provided at one end of the sleeve 10 may be used as a fixture. With such a configuration, it becomes easy for the operator to visually confirm the mounting portion 24 and the hole 26, and the positioning of the fixed portion becomes easy.

As shown in FIG. 19, a paper core 78 may be further provided in the opening 19 of the sleeve 10 along the inner peripheral surface of the sleeve body 12. In this way, by providing the annular, specifically hollow cylindrical paper core 78 in the embodiment, it is possible to prevent the sleeve 10 (particularly the sleeve body 12) from being deformed when the concrete 3 is placed. .. The core 78 may be recovered after the concrete 3 is cast, or may be installed as it is and burned at the time of combustion for disposal. Further, if the height of the core 78 is made larger than the height of the sleeve 10, the operator can confirm whether or not the core 78 is installed.

As shown in FIG. 20, the sleeve 10 (sleeve body 12) may be composed of a plurality of disassembleable parts 110a to 110d. In the embodiment shown in FIG. 20, the parts 110a to 110d are four parts having the same shape, and each member is provided with a protruding portion 110e and a slot 110f among the connecting members, and when used, adjacent parts 110a are provided. It is assembled by fitting the protrusion 110e of ~ d and the slot 110f. With such a configuration, during transportation or storage of the sleeve 10, the sleeve 10 can be compactly stored in a plurality of parts 10a to 10d in a disassembled state, which saves space and increases the efficiency of transportation and storage. do .

Further, as shown in FIGS. 21 (a) and 21 (b), the sleeve 10 may be configured to include a bellows portion 82 that can expand and contract along its axial direction. In this example, the sleeve body 12 of the sleeve 10 includes a non-stretchable end 80 and a bellows portion 82 adjacent thereto, and a force is applied to the end 80 of the sleeve 10 from the state of FIG. 21A in the left direction of the drawing. By adding the above, the bellows portion 82 is expanded, and the sleeve 10 can be extended to the state shown in FIG. 21 (b). The sleeve 10 can be contracted by pushing the end 80 back to the right in the drawing, and the total length of the sleeve 10 can be changed according to the desired floor thickness. Further, as shown in FIG. 21 (c), a molded body 84 made of resin or the like provided with a threaded portion 83 conforming to the outer shape of the bellows portion 82 is provided around a part or all of the bellows portion 82. Therefore, even after the concrete 3 is cast around the molded body 84, the bellows portion 4 covered with the molded body 84 can still be extended to the state shown in FIG. 21 (d), and the concrete. The sleeve 10 can be expanded and contracted even after the placement of 3, and the total length of the sleeve 10 can be changed according to the desired floor thickness.

A metal plate for reinforcement or the like may be further provided on at least the outer circumference of the sleeve body 12 of the sleeve 10. By doing so, it is possible to prevent the sleeve 10 (particularly the sleeve body 12) from being deformed when the concrete 3 is cast, and to reinforce the strength of the sleeve 10 even if the sleeve 10 thermally expands in the event of a fire.

The lower end of the sleeve 10 may be made of a flexible material in order to improve the adhesion between the sleeve 10 and the beam or wall formwork. Alternatively, an adhesive may be used between the sleeve 10 and the beam or wall formwork. Further, for the same reason, the upper end portion of the sleeve 10 may be made of a flexible material.

In order to protect the outer surface of the sleeve 10 from abrasion or chemicals such as an alkaline solution, the sleeve 10 may be coated with a resin such as an olefin resin or a vinyl chloride resin, or a coating material such as a paint. Further, in order to protect the inner surface of the sleeve 10 from damage due to contact with the pipe 5 or the like, the inner surface may be coated with a resin such as an olefin resin or a vinyl chloride resin, or a coating material such as a paint.

As shown in FIG. 22, an outer cylinder 85 made of a flammable resin such as an olefin resin or a vinyl chloride resin may be provided on the outside of the sleeve 10 in order to reinforce the sleeve 10. Further, in order to reinforce the sleeve 10, an inner cylinder 86 made of a resin such as an olefin resin or a vinyl chloride resin may be provided inside the sleeve 10. The outer cylinder 85 and the inner cylinder 86 may be provided on the sleeve 10 by integral molding, or may be separately produced and then inserted into the sleeve 10. Both the outer cylinder 85 and the inner cylinder 86 may be provided, or only one of them may be provided. The length (height) of the outer cylinder 85 and the inner cylinder 86 is not particularly limited, and may be a part of the length of the sleeve 10 or may be the same length as the sleeve 10. The materials constituting the outer cylinder 85 and the inner cylinder 86 are preferably non-expandable and flammable resins. More preferably, the material constituting the outer cylinder 85 and the inner cylinder 86 is a hard resin such as hard vinyl chloride. By providing at least one of the outer cylinder 85 and the inner cylinder 86, the strength of the sleeve 10 is increased, and deformation of the sleeve 10 during transportation of the sleeve 10 or casting of concrete 3 can be prevented or suppressed. Further, since the outer cylinder 85 and the inner cylinder 86 are made of a resin that burns due to the heat of a fire or the like, the outer cylinder 85 and / or the inner cylinder 86 burns due to the heat of a fire or the like, so that the expansion of the sleeve 10 is not hindered. But it is advantageous.

As shown in FIGS. 23 (a) and 23 (b), a sleeve 87 and a sleeve 88 made of a resin such as an olefin resin or a vinyl chloride resin are attached above and below the sleeve 10 formed of a heat-expandable refractory resin material. You may. The material constituting the sleeves 87 and 88 is preferably a hard resin such as hard vinyl chloride. The length of the sleeve 88 can be adjusted according to the thickness of the floor. The shapes and dimensions of the sleeves 87 and 88 may be the same or different, but the same will reduce the manufacturing cost of the sleeves 87 and 88 and will result in a stack structure consisting of the sleeve 10 and the sleeves 87 and 88. Easy to manufacture.

As shown in FIG. 23B, the lower end of the sleeve 87 fits into the recess provided at the upper end of the sleeve 10, and the upper end of the sleeve 88 fits into the recess provided at the lower end of the sleeve 10. By doing so, the sleeves 87 and 88 are attached to the sleeve 10, but instead the sleeves 87 and 88 may be attached to the sleeve 10 by other attachment means such as adhesive. Before passing the pipe 5 and the like through the stack structure, the upper end of the sleeve 87 may be covered with a paper cover material 77 so as to cover the opening at the upper end of the sleeve 87. By providing the upper sleeve 87, it is possible to prevent the sleeve 10 from being deformed during transportation or construction. Further, the paper cover material 77 can prevent dust or dust from entering the sleeve 87 and prevent the opening at the upper end of the sleeve 87 from being deformed. When the pipe 5 or the like is passed through the stack structure, the paper cover material 77 can be removed, and after the pipe 5 or the like is inserted into the stack structure, the cap 30 can be attached to the opening of the upper sleeve 87.

Further, if the sleeve 87 is configured so as to be visually distinguishable from the sleeve 10 (for example, by a color such as red, yellow, orange, blue, green, or fluorescence), it can be confirmed that the fire protection compartment treatment is applied. ..

Further, in the above embodiment, assuming that the through hole 16 has a circular cross section, the sleeve 10, the caps 30, 35, 40, and the fixing members 50, 120, 130 are annular members having a circular cross section. However, the shape of the through hole 16 may be adapted, and the sleeve 10, the caps 30, 35, 40, 50, and the fixing members 120, 130 may have an annular shape or a tubular shape having a substantially elliptical cross section. It may be formed so as to have an annular shape or a tubular shape having a rectangular cross section.

Further, in order to further impart antifungal property, insect repellent property, heat insulating property, moisture resistance and the like to the materials constituting the sleeve 10, the caps 30, 35, 40 and the fixing members 50, 120, 130, a known antifungal agent. , Insect repellent, heat insulating agent, moisture resistant agent and the like may be blended.

Further, in the above embodiment, the example in which the compartment 6 is a wall extending in the horizontal direction is shown, but the compartment 6 may be a wall extending in the vertical direction. In this case, using the sleeve 10 described above, a through hole extending in the horizontal direction is formed in the compartment. Then, the pipe 5 or the wiring is passed through the inside of the sleeve 10 (inside the through hole), and the porous piece 7 is filled between the inner surface of the sleeve 10 (the inner surface of the through hole) and the outer surface of the pipe 5 or the wiring. NS. Then, by installing the cap at one end of the through hole so that the pipe 5 or the wiring is passed through the opening of the cap (corresponding to the caps 30, 35, 40) described above, the inner surface of the sleeve 10 and the pipe 5 or the wiring are installed. The space between the outer surface and the surface is covered. Further, the fixing member is provided so that the pipe 5 or the wiring is passed through the opening of the fixing member (corresponding to the fixing members 50, 120, 130) and the fixing member comes into contact with the surface of the cap opposite to the through hole. It is fastened to the pipe 5 or the wiring. As a result, the cap is pressed by the fixing member. Further, the number of pipes 5 or wires passed through the through hole 16 may be one or a plurality.

5 plumbing,
6 compartments,
7 Porous pieces,
10,70,87,88 sleeves,
16 through hole,
30, 35, 40 caps,
30a Cap surface,
31 Cap opening,
50, 120, 130 Fixing member,
51 Fixing member opening,
52, 123, 132 Metal parts

Claims (5)

A compartment in which a through hole is formed and piping or wiring is passed through the through hole,
Porous pieces filled between the inner surface of the through hole and the outer surface of the pipe or wiring ,
With an annular cap,
The through hole is composed of a tubular sleeve.
The pipe or wiring is passed through the inside of the sleeve.
The sleeve contains a heat-expandable refractory resin material.
The porous piece is formed from a combustible material and is filled between the inner surface of the sleeve and the outer surface of the pipe or wiring.
The cap is installed at one end of the through hole so that the pipe or wiring is passed through the inner opening, and has a cap main body and a leg portion having a diameter smaller than that of the cap main body. death,
The leg portion covers between the inner surface of the through hole and the outer surface of the pipe or wiring, and the cap body is in contact with the surface of the compartment. A compartment in which a through hole is formed and piping or wiring is passed through the through hole,
Porous pieces filled between the inner surface of the through hole and the outer surface of the pipe or wiring,
With an annular cap,
The through hole is composed of a tubular sleeve.
The pipe or wiring is passed through the inside of the sleeve.
The porous pieces are formed from glass wool or rock wool and are filled between the inner surface of the sleeve and the outer surface of the pipe or wiring.
The cap is installed at one end of the through hole so that the pipe or wiring can be passed through the inner opening, and has a cap body and a leg having a diameter smaller than that of the cap body. death,
The leg portion covers between the inner surface of the through hole and the outer surface of the pipe or wiring, and the cap body is in contact with the surface of the compartment. The compartment-penetrating structure according to claim 1 or 2 , wherein the cap is made of vinyl chloride, polyurethane, or rubber. Further equipped with an annular fixing member,
3. The compartment penetration structure according to any one. The compartment-penetrating structure according to claim 4 , wherein the fixing member has a metal part formed of stainless steel, iron, or galvanized steel.

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